LONDON (Reuters) - Now that summer is in full swing in the Northern Hemisphere, the lingering daylight and sultry evenings are prime-time for outdoor concerts. In an effort to get you swaying in the breeze, online travel advisers Cheapflights.com (www.cheapflights.com) has put together this list of Full story

Lately, the jet stream isn't playing by the rules. Scientists say that big river of air high above Earth that dictates much of the weather for the Northern Hemisphere has been unusually erratic the past few years. Full story

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Photographer Chris Cook and his son watch Comet PanSTARRS from First Encounter Beach in Eastham, Mass., on the evening of March 13, 2013. The photograph was taken via remote shutter release, using a Canon 5D and a Canon EF 70-200mm f/2.8 L lens. The image served as NASA's Astronomy Picture of the Da